Goa, Daman and Diu in the context of "Annexation of Goa"

Dadra and Nagar Haveli and Daman and Diu (IPA: [d̪aːd̪ɾaː nəɡəɾ ɦəʋeːliː, d̪əmən d̪iːʋ]) is a union territory in India. The territory was constituted through the merger of the former territories of Dadra and Nagar Haveli and Daman and Diu. Plans for the proposed merger were announced by the Government of India in July 2019; the necessary legislation was passed in the Parliament of India in December 2019 and came into effect on 26 January 2020. The territory is made up of four separate geographical entities: Dadra, Nagar Haveli, Daman, and the island of Diu. All four areas were formerly part of Portuguese India, with a joint capital at Panjim, Goa. They came under Indian rule in the mid-20th century after the Annexation of Goa and of the Free Dadra and Nagar Haveli. Goa, Daman and Diu were jointly administered until 1987, when Goa was granted statehood after the Konkani language agitation. The current capital is Daman and Silvassa is the largest city.

Daman and Diu (English: /dəˈmɑːn...'diːuː/; Hindi: [d̪əmən...d̪iːʋ] ) was a union territory in northwestern India. With an area of 112 km (43 sq mi), it was the smallest administrative subdivision of India on the mainland. The territory comprised two districts, Daman and Diu Island, geographically separated by the Gulf of Khambat. The state of Gujarat and the Arabian Sea bordered the territory. A Portuguese colony since the 1500s, these territories were taken over by India with the Annexation of Goa in 1961. Daman and Diu were administered as part of the union territory of Goa, Daman and Diu between 1961 and 1987. After the Goa Opinion Poll, they became separate union territories. In 2019, a legislation was passed to merge the union territories of Daman and Diu with its neighbouring union territory, Dadra and Nagar Haveli, to form the new union territory of Dadra and Nagar Haveli and Daman and Diu with effect from 26 January 2020.

Daman district (English: /də'mɑːn/, Gujarati: [d̪əmən]) (formerly Distrito de Damão) is one of three districts of the Indian union territory of Dadra and Nagar Haveli and Daman and Diu. It is located on the west coast of India and is surrounded by the Valsad district of Gujarat to the north, east, and south; and by the Arabian Sea to the west. The district covers an area of 72 square kilometers (28 sq mi) and had a population of 191,173 as of the 2011 census, an increase of 69.256% from the 2001 census. The district headquarters is Daman. The territorial headquarters were previously in Panjim when it was jointly administered as Goa, Daman, and Diu until the time of the Konkani language agitation.

Daman lies at the mouth of the Daman Ganga River. The closest railway station is Vapi, which is 7 km away. Surat is to the north, and Mumbai is approximately 160 km (100 mi) to the south in the Konkan division of Maharashtra.

The Konkani language agitations were a series of protests between 1961 and 1987 that advocated for Konkani as the official language. Protests were led by Goans in the former territory of Goa, Daman and Diu. It involved citizen journalism, student activism, and political demonstrations; as Konkani was denied official status, even after it was established that Konkani is not a dialect of Mahratti in 1975.

The civil unrest ceased after Konkani, in the Devnagari script, was granted premier official status and Marathi was declared an associate official language of Goa.

Konkan division is one of the six administrative divisions of Maharashtra state in India. It comprises the central portions of the Konkani region, excluding Goa and Daman, which were absorbed into Maharashtra owing to the States Reorganisation of India. Konkan division is the western section of present-day Maharashtra, alongside the west coast of India. The two districts of the state capital of Mumbai (Bombay) also fall into this division.